FERS Annuity Calculator 2026 - Free Federal Retirement Calculator
Free FERS annuity calculator and federal retirement calculator updated for 2026. Calculate your FERS pension, FERS annuity supplement, disability retirement benefits, and high-3 salary benefits. Our FERS calc uses official OPM formulas to estimate your Federal Employees Retirement System annuity based on years of service, high-3 average salary, and retirement age.
Last updated: February 2, 2026 - Updated for 2026 FERS calculations
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Include all federal service time
Average of highest 3 consecutive years of basic pay
Your age when you plan to retire
Available if retiring before age 62 with 30+ years
Results
$2,750.00
$33,000 annually
Replacement Rate
33.0%
Lifetime Value
$0.76M
$33,000
Includes annuity
Important Notes
- • FERS annuity is based on 1.1% per year of service
- • COLA adjustments begin at age 62 for regular retirees
- • Subject to federal income tax and possibly state tax
- • Does not include TSP distributions or Social Security
FERS Retirement Calculator Features & Types
Formula
1% or 1.1% × Years × High-3
Core FERS pension calculation based on creditable service
Average period
36 Consecutive Months
Critical factor in FERS annuity calculation
Eligibility
30+ Years, Before 62
Temporary benefit approximating Social Security
Components
FERS + TSP + SS
Three-tier retirement system analysis
Standard
OPM Certified
Based on official government retirement formulas
Options
Immediate, Early, Deferred
Analyze different retirement timing scenarios
Federal Retirement Calculator 2026 (Updated from 2020) & Calculating a FERS Annuity
⚡ Updated for 2026 - Latest FERS Formulas
If you're searching for a federal retirement calculator 2020, you've found the most current version! Our calculator has been updated for 2026 with the latest FERS formulas, OPM regulations, and benefit calculations. All FERS annuity formulas remain the same (1% standard, 1.1% enhanced), but we've improved the calculator interface and added support for disability retirement calculations.
Our federal retirement calculator (updated for 2026) uses the latest FERS formulas and regulations to help federal employees accurately estimate their retirement benefits. Calculating a FERS annuity involves understanding your years of creditable service, your high-3 average salary, and your retirement age to determine the correct annuity multiplier (1% or 1.1%).
The FERS annuity calculation follows this formula: High-3 Salary × Years of Service × Annuity Multiplier. For most federal employees, the multiplier is 1% per year of service. However, if you retire at age 62 or older with at least 20 years of service, you qualify for the enhanced 1.1% multiplier, which increases your annual annuity by 10%.
When calculating a FERS annuity, it's important to note that your high-3 average salary is based on your highest 36 consecutive months of basic pay. This typically includes your base salary plus locality pay, but excludes bonuses, overtime, and other special payments unless they're part of your regular basic pay rate.
Example: Calculating a FERS Annuity
Scenario: Federal employee with 30 years of service, $100,000 high-3 salary, retiring at age 62
- Years of Service: 30 years
- High-3 Salary: $100,000
- Multiplier: 1.1% (age 62+ with 20+ years)
- Calculation: $100,000 × 30 × 1.1% = $33,000 annual annuity
- Monthly Payment: $33,000 ÷ 12 = $2,750/month
FERS Annuity Supplement Calculator - How It Works
What is the FERS Annuity Supplement?
The FERS annuity supplement (also called the Special Retirement Supplement or SRS) is a temporary benefit designed to bridge the gap between your FERS retirement and Social Security eligibility at age 62. This supplement approximates the Social Security benefit you earned during your federal service years and is paid monthly from your retirement date until you turn 62.
Eligibility Requirements
- ✓ Retire before age 62
- ✓ 30+ years of service
- ✓ Immediate retirement (not deferred)
- ✓ Or MRA with 30 years
Key Features
- • Paid monthly until age 62
- • Subject to earnings test
- • Taxable income
- • Ends automatically at 62
FERS Annuity Supplement & Civil Service Retirement Calculator FERS
FERS Annuity Supplement
The FERS annuity supplement (also called the Special Retirement Supplement or SRS) is a temporary benefit designed to bridge the gap between your FERS retirement and Social Security eligibility at age 62. This supplement approximates the Social Security benefit you earned during your federal service years and is paid monthly from your retirement date until you turn 62.
To qualify for the FERS annuity supplement, you must retire under immediate retirement provisions before age 62 with at least 30 years of service, or at your Minimum Retirement Age (MRA) with 30 years of service. The supplement calculation is complex and involves estimating your Social Security benefit based on your federal service, then prorating it based on your years of FERS service divided by 40.
Important notes about the FERS annuity supplement:
- The supplement is subject to an earnings test similar to Social Security
- It ends automatically when you turn 62, regardless of when you claim Social Security
- It's taxable income and reported on Form 1099-R
- Not available for deferred retirement or MRA+10 retirement
- The supplement amount can change annually based on Social Security cost-of-living adjustments
Civil Service Retirement Calculator FERS
Our civil service retirement calculator FERS helps federal employees understand the difference between the old Civil Service Retirement System (CSRS) and the Federal Employees Retirement System (FERS). While CSRS was available to employees hired before 1984, FERS applies to most federal employees hired after 1983.
The civil service retirement calculator FERS uses the standard FERS formulas to calculate your retirement annuity. Unlike CSRS, which provided 1.5-2% per year of service (but no Social Security), FERS provides 1-1.1% per year but includes Social Security benefits and Thrift Savings Plan (TSP) matching contributions.
FERS vs CSRS Comparison
FERS (Federal Employees Retirement System)
- 1-1.1% per year of service
- Includes Social Security
- TSP matching up to 5%
- Three-tier retirement system
CSRS (Civil Service Retirement System)
- 1.5-2% per year of service
- No Social Security
- Higher pension benefits
- Single-tier retirement system
Quick Example Result
30 years of service, $100,000 high-3 salary, retiring at age 62:
Monthly
$2,750
Annual
$33,000
Replacement
33%
Lifetime
$0.76M
FERS Disability Retirement Calculator
Our FERS disability retirement calculator helps federal employees estimate disability retirement benefits. FERS disability retirement is available to employees who become disabled and have at least 18 months of creditable service.
FERS Disability Retirement Calculation
- First Year: 60% of high-3 average salary (minus 100% of any Social Security disability benefit)
- After First Year: 40% of high-3 (minus 60% of Social Security disability) until age 62
- At Age 62: Converts to regular FERS annuity calculation
Note: To calculate disability retirement benefits, select "Disability Retirement" in the retirement type dropdown above. The calculator will adjust the formula accordingly. For accurate disability calculations, consult with OPM or a qualified retirement specialist.
How Our FERS Annuity Calculator Works
Our FERS annuity calculator uses the official Office of Personnel Management (OPM) formula to estimate your federal retirement benefits. The calculation multiplies your creditable years of service by your high-3 average salary and the applicable percentage multiplier, providing accurate projections of your monthly and annual FERS pension payments.
FERS Annuity Calculation Formula
Quick Reference Table
| Retirement Age | Years of Service | Multiplier |
|---|---|---|
| Under 62 | Any | 1.0% |
| 62 or older | 20+ years | 1.1% |
| 62 or older | Less than 20 | 1.0% |
The enhanced 1.1% multiplier provides a 10% higher annuity for eligible retirees. This incentivizes federal employees to work longer and retire at full retirement age. The high-3 salary is your average basic pay during any 3 consecutive years of service, typically your final three years.
Visualization of FERS three-tier retirement system components
FERS Special Retirement Supplement
The Special Retirement Supplement (SRS) is a unique FERS benefit that bridges the gap between retirement and Social Security eligibility at age 62. It approximates the Social Security benefit earned during your federal service years. To qualify, you must retire under immediate retirement provisions before age 62 with at least 30 years of service, or at your Minimum Retirement Age with 30 years.
- SRS calculation: (Estimated SS benefit × Years of Federal Service) ÷ 40
- Paid monthly from retirement date until age 62
- Subject to earnings test (similar to Social Security)
- Taxable income, reported on Form 1099-R
- Not available for deferred retirement or MRA+10 retirement
- Ends automatically when you turn 62, regardless of SS claiming decision
Quick FERS Calc Guide
Looking for a quick FERS calc? Our calculator makes it easy:
- Enter your years of creditable service
- Input your high-3 average salary
- Select your retirement age
- Choose retirement type (regular, early, deferred, or disability)
- Click "Calculate FERS Annuity"
The FERS calc automatically applies the correct multiplier (1% or 1.1%) based on your age and service years, and estimates your Special Retirement Supplement if eligible.
Sources & References
- U.S. Office of Personnel Management (OPM) - FERS InformationOfficial source for FERS annuity calculations and retirement rules
- 5 U.S.C. Chapter 84 - Federal Employees' Retirement SystemLegal foundation for FERS benefits and calculations
- OPM FERS Handbook - Comprehensive Guide to FERS BenefitsDetailed explanation of FERS annuity, supplement, and survivor benefits
Planning comprehensive retirement? Check out our retirement calculator and 401k loan calculator.
Get Custom Calculator for Your PlatformFERS Annuity Calculator Examples
Employee Profile:
- Years of Service: 30 years
- High-3 Salary: $100,000
- Retirement Age: 62
- Retirement Type: Regular
- Multiplier: 1.1% (age 62+ with 20+ years)
Calculation Steps:
- Apply enhanced formula: 1.1% (age 62+ with 20+ years)
- Calculate: $100,000 × 30 × 1.1% = $33,000
- Annual annuity: $33,000
- Monthly annuity: $33,000 ÷ 12 = $2,750
- Replacement rate: $33,000 ÷ $100,000 = 33%
Result: $2,750/month ($33,000/year) FERS annuity
33% salary replacement from pension alone. Add Social Security (~35%) and TSP for complete retirement income.
Early Retirement Example
25 years, $80,000 high-3, age 60
$20,000/year (1% × 25 × $80,000)
With Supplement Example
30 years, age 56 (MRA+30)
Plus ~$1,500/mo until age 62
Frequently Asked Questions
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